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                            <div class=" wh_publication_toc " data-tooltip-position="right"><span class="expand-button-action-labels"><span id="button-expand-action" role="button" aria-label="Expand"></span><span id="button-collapse-action" role="button" aria-label="Collapse"></span><span id="button-pending-action" role="button" aria-label="Pending"></span></span><ul role="tree" aria-label="Table of Contents"><li role="treeitem"><div data-tocid="c_introduction-d4029e80771" class="topicref" data-id="c_introduction" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/c_introduction.html" id="c_introduction-d4029e80771-link">Introduction</a><div class="wh-tooltip">This documentation focuses on video editing of Dolby Vision files in an Android application, and covers support provided in a sample application for critical aspects on both graphics processing unit (GPU) and display processing unit (DPU)  platforms and corresponding Dolby Vision versions.</div></div></div></li><li role="treeitem"><div data-tocid="c_display_management-d4029e80856" class="topicref" data-id="c_display_management" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/c_display_management.html" id="c_display_management-d4029e80856-link">Display management</a><div class="wh-tooltip">There are two versions of Dolby Vision capture; the version present on a device depends on the display management processing unit or platform used for Dolby Vision. It is critical that an application can determine which version is present, and can run correctly on both versions. Determining the version reliably involves examining the Dolby Vision codecs present on the device.</div></div></div></li><li role="treeitem"><div data-tocid="c_editing_gpu_shaders-d4029e80932" class="topicref" data-id="c_editing_gpu_shaders" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/c_editing_gpu_shaders.html" id="c_editing_gpu_shaders-d4029e80932-link">Editing using the GPU shaders</a><div class="wh-tooltip">The sample application provides two GPU (graphics processing unit) shaders for editing.  The DPU (display processing unit) is not used for editing, but is used for display.</div></div></div></li><li role="treeitem"><div data-tocid="c_signaling_preview-d4029e81009" class="topicref" data-id="c_signaling_preview" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/c_signaling_previewing.html" id="c_signaling_preview-d4029e81009-link">HLG signaling and previewing</a><div class="wh-tooltip">Adding support for Dolby Vision editing involves understanding how to process hybrid log-gamma (HLG) frames correctly so that the preview surface is aware of their format.</div></div></div></li><li role="treeitem"><div data-tocid="c_chapter3-d4029e81083" class="topicref" data-id="c_chapter3" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/c_trimming_remuxing.html" id="c_chapter3-d4029e81083-link">Trimming and remultiplexing</a><div class="wh-tooltip">When trimming directly on an encoded video bitstream to preserve video quality, Dolby Vision multiplexer information must be added to the MP4 file. Dolby provides a tool to do this that can be integrated into an application.</div></div></div></li><li role="treeitem" class="active"><div data-tocid="r_appendix-d4029e81158" class="topicref" data-id="r_appendix" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/r_appendix.html" id="r_appendix-d4029e81158-link">Appendix</a></div></div></li><li role="treeitem"><div data-tocid="tocId-d4029e81225" class="topicref glossary" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/r_ov_glossary.html" id="tocId-d4029e81225-link">Glossary</a></div></div></li><li role="treeitem"><div data-tocid="Chunk1228116482-d4029e80571" class="topicref frontmatter" data-id="Chunk1228116482" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../topics/Chunk1228116482.html#Chunk1228116482" id="Chunk1228116482-d4029e80571-link">Notices</a></div></div></li></ul></div>
                        

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    <h1 class="- topic/title title topictitle1" id="ariaid-title1">Appendix</h1>
    
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        <section class="- topic/section section" id="r_appendix__section_quality_control" data-ofbid="r_appendix__section_quality_control"><h2 class="- topic/title title sectiontitle">Quality control for <span class="keyword">Dolby Vision</span> applications</h2>
            
            <p class="- topic/p p">It is important to confirm that all the video editing pipeline elements described in this documentation have been correctly implemented in your application. The following tools let you confirm that the output file is a valid <span class="keyword">Dolby Vision</span> file.</p>
            <div class="- topic/p p">For <span class="keyword">Dolby Vision</span> bitstream objective quality control, please download one of the following verification toolkits: <ul class="- topic/ul ul">
                <li class="- topic/li li"><a class="- topic/xref xref" href="https://customer.dolby.com/content-creation-and-delivery/dolby-vision-professional-verification-toolkit-v380" target="_blank" rel="external noopener">Dolby Vision Professional Verification Toolkit v3.8.0</a></li>

                <li class="- topic/li li"><a class="- topic/xref xref" href="https://customer.dolby.com/content-creation-and-delivery/dolby-vision-professional-verification-toolkit-lite-v430" target="_blank" rel="external noopener">Dolby Vision Professional Verification Toolkit - Lite v4.3.0</a></li>

                </ul>
            </div>

            <p class="- topic/p p">For <span class="keyword">Dolby Vision</span> bitstream in <span class="keyword"></span>, <a href="g_2332.html" title="HTTP Live Streaming: An adaptive streaming protocol developed by Apple for delivery of media content in various software environments."><dfn class="+ topic/term abbrev-d/abbreviated-form term abbreviated-form">HLS</dfn></a> (<span class="keyword">HTTP Live Streaming</span>), or <a href="g_2019.html" title="MPEG Dynamic Adaptive Streaming over HTTP: An adaptive bit-rate streaming protocol that enables high-quality streaming of media content over the Internet delivered from HTTP."><dfn class="+ topic/term abbrev-d/abbreviated-form term abbreviated-form">MPEG‑DASH</dfn></a> (<span class="keyword">MPEG Dynamic Adaptive Streaming over HTTP</span>) quality control, please use the  <a class="- topic/xref xref" href="https://ott.dolby.com/OnDelKits_dev/StreamValidator/Start_Here.html" target="_blank" rel="external noopener"><span class="keyword">Dolby</span> Stream Validator</a>.</p>
        </section>
        <section class="- topic/section section" id="r_appendix__section_tech_info" data-ofbid="r_appendix__section_tech_info"><h2 class="- topic/title title sectiontitle"><span class="keyword">Dolby Vision</span> technical information</h2>
            
            <div class="- topic/p p">
                <ul class="- topic/ul ul">
                    <li class="- topic/li li"><a class="- topic/xref xref" href="https://professionalsupport.dolby.com/s/article/What-is-Dolby-Vision-Profile" target="_blank" rel="external noopener">What are Dolby Vision profiles?</a></li>

                    <li class="- topic/li li"><a class="- topic/xref xref" href="https://professionalsupport.dolby.com/s/article/How-to-signal-Dolby-Vision-in-ISOBMFF-format-AKA-mp4-container" target="_blank" rel="external noopener">How to signal Dolby Vision in ISOBMFF format (MP4)</a></li>

                </ul>
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                            <div class=" wh_topic_toc "><div class="wh_topic_label">On this page</div><ul><li class="section-item"><div class="section-title"><a href="#r_appendix__section_quality_control" data-tocid="r_appendix__section_quality_control">Quality control for Dolby Vision applications</a></div></li><li class="section-item"><div class="section-title"><a href="#r_appendix__section_tech_info" data-tocid="r_appendix__section_tech_info">Dolby Vision technical information</a></div></li></ul></div>
                        

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